Home / 18,921,815.70-28,363,333.96-14,363,214.27

Finding the Fourth Proportional to 18,921,815.70, 28,363,333.96 and 14,363,214.27

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Solution

The fourth proportional to 18,921,815.70, 28,363,333.96 and 14,363,214.27 is: 21,530,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921,815.70 : 28,363,333.96 = 14,363,214.27 : x
  2. Step 2: Convert to fraction form
    18,921,815.70/28,363,333.96 = 14,363,214.27/x
  3. Step 3: Cross multiply
    18,921,815.70x = 28,363,333.96 × 14,363,214.27
  4. Step 4: Simplify right side
    18,921,815.70x = 407,388,643,079,047.62
  5. Step 5: Solve for x
    x = 407,388,643,079,047.62/18,921,815.70
  6. Step 6: Final answer
    x = 21,530,103.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.